Liquid Distributor

High performance liquid distributors aim towards ideal liquid distribution, i.e. equal liquid rate per unit area of the packed bed surface. These distributors are available in a complete range to suit various column diameters, liquid rates and service conditions. Models, which can give turndown ratio upto 10:1, are available. Our design team selects the most suitable model for a given application. The table below listes some conventional distributors.   Orifice ladder liquid distributor Spray nozzle liquid distributor Orifice pan liquid distributor Weir orifice liquid distributor Orifice trough liquid distributor Weir trough liquid distributor Drive force pressure pressure gravity gravity gravity gravity Distribute capacity middle Low to middle high high middle middle Load range low low middle middle middle high Liquid load (m3/m2.h) 0.25~1.5 Wide range Wide range Wide range Wide range Wide range Diameter (m) > 0.45 random random normal < 1.2 random normal > 1.2 random random Resistant of fouling high Low to middle high middle low low Gas resistance low low high Low to middle high high Levelness requirement no no yes yes yes yes Effect on corrosion high low high high low low Effect on thickness of liquid no no yes yes yes yes Liquid entrainment yes yes no no no no Weight low low high middle middle middle Orifice ladder liquid distributor   Φ3800 Orifice pan liquid collect and redistributor Orifice pan liquid distributor Orifice pan liquid distributor Orifice trough liquid distributor     Bed Limiter Bed limiters are safety devices that are available for both random as well structured packing to avoid the expansion of the packed bed, as well as to maintain the bed top surface level.   Support Plate Support plates in addition to providing physical support to the packings, must also allow unrestricted flow of gas and liquid. Gas injection support plates provide separate passageways for liquid and gas, which minimizes the pressure drop across the plate. Support plate model is selected depending upon the packing type and size and the maximum design load to be supported.   Collector/Chimney Tray Collector trays are used to collect liquid from between packed beds. Liquid interception is required in various situations such as total or partial draw-off of liquid, change in the column diameter, which sometimes necessitates the redistribution of the liquid; to cool the liquid in absorbers before passing to the next packed bed etc. Different types of collector trays are available to suit the column diameter and the vapour and liquid rates.   Feed Device Different feed devices are available for various feed conditions of the fluid entering the column such as only liquid feed, mixed feed or gaseous feed. Feed devices are selected to complement with the type of distributor used to give the optimum performance of each.   Pall ring | Tellerette ring | IMTP ring | Ceramic Alumina ball | PTFE expansion joint | Rubber expansion | Liquid distributor